A headrest mechanism including a post extending from a headrest pad, a tubular bushing adapted to be coupled to an occupant seat, a slider assembly, and an actuator. The slider assembly is moveably positioned within the bushing and includes a block selectively moveable between a position engaged with and a position disengaged with the bushing. A post of the headrest pad is coupled to the slider assembly such that movement of the slider assembly causes the headrest pad to move.